Finding the Third Proportional to 5,205,280 and 7,777,302

Step by Step Solution

1. Step 1: Write the proportion equation
   5,205,280 : 7,777,302 = 7,777,302 : x
2. Step 2: Convert to fraction form
   5,205,280/7,777,302 = 7,777,302/x
3. Step 3: Cross multiply
   5,205,280x = 7,777,302 × 7,777,302
4. Step 4: Simplify right side
   5,205,280x = 60,486,426,399,204
5. Step 5: Solve for x
   x = 60,486,426,399,204/5,205,280
6. Step 6: Final answer
   x = 11,620,206.10